From: Kamalesh Babulal Subject: Re: [BUG] 2.6.23-rc5 kernel BUG at fs/nfs/nfs4xdr.c:945 Date: Mon, 10 Sep 2007 18:26:08 +0530 Message-ID: <46E53EE8.8010602@linux.vnet.ibm.com> References: <46E121B8.4080105@linux.vnet.ibm.com> <6bffcb0e0709071656o6881fa17y61818a9733293a4c@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: bfields@fieldses.org, neilb@suse.de, nfs@lists.sourceforge.net, linux-kernel@vger.kernel.org To: Michal Piotrowski Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.92] helo=mail.sourceforge.net) by sc8-sf-list2-new.sourceforge.net with esmtp (Exim 4.43) id 1IUipX-0001lp-Uh for nfs@lists.sourceforge.net; Mon, 10 Sep 2007 05:57:32 -0700 Received: from e23smtp05.au.ibm.com ([202.81.18.174]) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1IUipb-0003CF-2S for nfs@lists.sourceforge.net; Mon, 10 Sep 2007 05:57:36 -0700 Received: from sd0109e.au.ibm.com (d23rh905.au.ibm.com [202.81.18.225]) by e23smtp05.au.ibm.com (8.13.1/8.13.1) with ESMTP id l8ACuKNX021658 for ; Mon, 10 Sep 2007 22:56:20 +1000 Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by sd0109e.au.ibm.com (8.13.8/8.13.8/NCO v8.5) with ESMTP id l8ACxpxV163372 for ; Mon, 10 Sep 2007 22:59:52 +1000 Received: from d23av01.au.ibm.com (loopback [127.0.0.1]) by d23av01.au.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id l8ACuHcg018165 for ; Mon, 10 Sep 2007 22:56:17 +1000 In-Reply-To: <6bffcb0e0709071656o6881fa17y61818a9733293a4c@mail.gmail.com> List-Id: "Discussion of NFS under Linux development, interoperability, and testing." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nfs-bounces@lists.sourceforge.net Errors-To: nfs-bounces@lists.sourceforge.net Michal Piotrowski wrote: > Hi, > > On 07/09/2007, Kamalesh Babulal wrote: > >> Sep 7 11:42:49 p55lp2 kernel: kernel BUG at fs/nfs/nfs4xdr.c:945! >> Sep 7 11:42:49 p55lp2 kernel: Oops: Exception in kernel mode, sig: 5 [#1] >> Sep 7 11:42:49 p55lp2 kernel: SMP NR_CPUS=128 NUMA pSeries >> Sep 7 11:42:49 p55lp2 kernel: Modules linked in: nfs lockd nfs_acl >> sunrpc ipv6 loop dm_mod ibmveth sg ibmvscsic sd_mod scsi_mod >> Sep 7 11:42:49 p55lp2 kernel: NIP: d000000000378044 LR: >> d000000000378034 CTR: 80000000001c5840 >> Sep 7 11:42:49 p55lp2 kernel: REGS: c0000000d971b050 TRAP: 0700 Not >> tainted (2.6.23-rc5-ppc64) >> Sep 7 11:42:49 p55lp2 kernel: MSR: 8000000000029032 CR: >> 28000444 XER: 00000014 >> Sep 7 11:42:49 p55lp2 kernel: TASK = c000000002787740[11508] 'fsstress' >> THREAD: c0000000d9718000 CPU: 1 >> Sep 7 11:42:49 p55lp2 kernel: GPR00: 0000000000000001 c0000000d971b2d0 >> d0000000003bd648 0000000000000037 >> Sep 7 11:42:49 p55lp2 kernel: GPR04: 0000000000000000 0000000000000000 >> 0000000000000000 0000000000000000 >> Sep 7 11:42:49 p55lp2 kernel: GPR08: 0000000000000002 c000000000616538 >> c0000000ef7afb58 c000000000616540 >> Sep 7 11:42:49 p55lp2 kernel: GPR12: 0000000000004000 c0000000005e4a80 >> 0000000000000000 00000000200b2510 >> Sep 7 11:42:49 p55lp2 kernel: GPR16: 0000000020105550 00000000200b2534 >> 000000002008c15c 0000000000000001 >> Sep 7 11:42:49 p55lp2 kernel: GPR20: 0000000000000000 0000000000000001 >> fffffffffffff000 c0000000d971ba30 >> Sep 7 11:42:49 p55lp2 kernel: GPR24: d00000000034f524 c0000000dc4f8054 >> c0000000d971b7d0 c0000000d9d313f0 >> Sep 7 11:42:49 p55lp2 kernel: GPR28: 0000000000000276 0000000022000000 >> d0000000003b8d78 0000000000000000 >> Sep 7 11:42:49 p55lp2 kernel: NIP [d000000000378044] >> .encode_lookup+0x6c/0xbc [nfs] >> Sep 7 11:42:49 p55lp2 kernel: LR [d000000000378034] >> .encode_lookup+0x5c/0xbc [nfs] >> Sep 7 11:42:49 p55lp2 kernel: Call Trace: >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971b2d0] [d000000000378034] >> .encode_lookup+0x5c/0xbc [nfs] (unreliable) >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971b370] [d000000000379f8c] >> .nfs4_xdr_enc_lookup+0x78/0xbc [nfs] >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971b440] [d000000000314534] >> .rpcauth_wrap_req+0xe4/0x124 [sunrpc] >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971b4f0] [d00000000030a790] >> .call_transmit+0x218/0x2b8 [sunrpc] >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971b590] [d0000000003124d8] >> .__rpc_execute+0xd4/0x368 [sunrpc] >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971b630] [d00000000030b114] >> .rpc_do_run_task+0xc8/0x104 [sunrpc] >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971b6e0] [d00000000030b224] >> .rpc_call_sync+0x2c/0x64 [sunrpc] >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971b760] [d00000000036ef04] >> ._nfs4_proc_lookupfh+0xd4/0x124 [nfs] >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971b850] [d0000000003719a0] >> ._nfs4_proc_lookup+0x80/0x21c [nfs] >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971b910] [d000000000371ba4] >> .nfs4_proc_lookup+0x68/0xac [nfs] >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971b9c0] [d000000000354bf4] >> .nfs_lookup+0x158/0x334 [nfs] >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971bbc0] [c0000000000f3a28] >> .lookup_hash+0xfc/0x140 >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971bc60] [c0000000000f7b28] >> .sys_renameat+0x164/0x228 >> Sep 7 11:42:49 p55lp2 kernel: [c0000000d971be30] [c000000000008534] >> syscall_exit+0x0/0x40 >> Sep 7 11:42:49 p55lp2 kernel: Instruction dump: >> Sep 7 11:42:49 p55lp2 kernel: e8410028 7fa4eb78 7c7f1b79 7fb80026 >> 40820014 e8be83a8 e87e8350 4800c5f9 >> Sep 7 11:42:49 p55lp2 kernel: e8410028 7fb80120 7c180026 54001ffe >> <0b000000> 3800000f 7b850020 387f0008 >> > > Is this a post 2.6.22 regression? Have you tried 2.6.23-rc5-git1? > (There are a few nfs fixes) > > Regards, > Michal > When i tried with 2.6.23-rc5-git1, i dropped in xmon state with following trace cpu 0x1: Vector: 700 (Program Check) at [c0000000e28c30c0] pc: d000000000846d74: .nfs4_xdr_enc_create+0x204/0x2b4 [nfs] lr: d000000000846d68: .nfs4_xdr_enc_create+0x1f8/0x2b4 [nfs] sp: c0000000e28c3340 msr: 8000000000029032 current = 0xc0000000e58a4790 paca = 0xc0000000005eaf00 pid = 3452, comm = fsstress kernel BUG at fs/nfs/nfs4xdr.c:788! 1:mon> t [c0000000e28c3410] d00000000019a2d4 .rpcauth_wrap_req+0xe4/0x124 [sunrpc] [c0000000e28c34c0] d000000000190774 .call_transmit+0x218/0x2b8 [sunrpc] [c0000000e28c3560] d000000000198308 .__rpc_execute+0xd4/0x34c [sunrpc] [c0000000e28c3600] d0000000001910f8 .rpc_do_run_task+0xc8/0x104 [sunrpc] [c0000000e28c36b0] d000000000191208 .rpc_call_sync+0x2c/0x64 [sunrpc] [c0000000e28c3730] d00000000083bd68 .nfs4_proc_symlink+0x180/0x220 [nfs] [c0000000e28c3ae0] d000000000822298 .nfs_symlink+0x1b8/0x344 [nfs] [c0000000e28c3c60] c0000000000f5400 .vfs_symlink+0x144/0x1e8 [c0000000e28c3d00] c0000000000f8bf0 .sys_symlinkat+0xa8/0x110 [c0000000e28c3e30] c000000000008534 syscall_exit+0x0/0x40 --- Exception: c01 (System Call) at 000000000ff578c0 SP (ff9e59d0) is in userspace 1:mon> and i am not sure of the post 2.6.22 regression. Thanks & Regards, Kamalesh Babulal. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs